4RVZ:
reference: A Covalent Approach for Site-Specific RNA Labeling in Mammalian Cells., Li F, Dong J, Hu X, Gong W, Li J, Shen J, Tian H, Wang J, Angew Chem Int Ed Engl. 2015 Feb 18. doi: 10.1002/anie.201410433. PMID: 25694369

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).